A67-year-oldmanwithahistoryorhyperlipidemiaandhypertensionisevaluatedintheemergencyroomafterasyncopalevent.Hewasmowingthelawn,becamewinded,andsuddenly"blackedout."Heremarksthathehashadtwootherepisodesofsyncopeoverthepast3months,andhasdevelopedoccasionalexertionalchestdis
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